What's the best way to automatically swap smart hosts (sendmail)?

bscott at ntisys.com bscott at ntisys.com
Wed Jul 2 15:10:15 EDT 2003


On Wed, 2 Jul 2003, at 11:22am, tom at buskey.name wrote:
>> AT&T did /not/ filter outgoing port 25.
>
> I run my own mail server, incoming & outgoing, on attbi/comcast They don't
> seem to be doing anything to block it either way (yet).

  Okay, I've checked my notes, and yes, I had my wires crossed.  We didn't
need to use AT&T's SMTP relay because AT&T was blocking TCP port 25, but
because *other* ISPs were blocking residential AT&T customers from sending
mail directly to their MX.  It was Verizon that was blocking TCP port 25
outbound.

  Sorry for the confusion.  :-)

-- 
Ben Scott <bscott at ntisys.com>
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